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Vue.set in plain array cause Cannot read properties of undefined (reading 'shallow') in 2.7.3 #12635

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gitpaladin opened this issue Jul 8, 2022 · 1 comment
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Vue.set in plain array cause Cannot read properties of undefined (reading 'shallow') in 2.7.3 #12635

gitpaladin opened this issue Jul 8, 2022 · 1 comment

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@gitpaladin
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Reproduction link

codesandbox.io

Steps to reproduce

import Vue from "vue";

const a = [1, 2, 3];
Vue.set(a, 1, 100);   // Cannot read properties of undefined (reading 'shallow')

What is expected?

Set the array element by index.

What is actually happening?

Error occured.

Introduced in 2.7.3 with commit

360272b#diff-2e26135213b820cfd0eaba327405d14d405a4eee7d14a5c4acfcc2c84ef14692R244
@yyx990803
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Duplicate of #12632

@yyx990803 yyx990803 marked this as a duplicate of #12632 Jul 8, 2022
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@yyx990803 @gitpaladin